Stack chair



FIG. 1 is a front perspective view of a stack chair showing my design.

FIG. 2 is a perspective view from the rear thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a side elevational view, the opposite side being a mirror image thereof.

FIG. 5 is a front elevational view thereof.

FIG. 6 is a plan view thereof.

FIG. 7 is a cross-sectional view through a leg of the chair taken on the line 7--7 of FIG. 2 showing a rhombic configuration, typical of all the legs. 

The ornamental design for a stack chair, as shown and described. 